Joshua (Hebrew: יְהוֹשֻׁעַ‎‎ Yĕhôshúa‘; Greek: Ἰησοῦς, Arabic: يوشع بن نون‎ Yūshaʿ ibn Nūn), is a figure in the Torah, being one of the spies for Israel (Num 13-14) and in few passages as Moses's assistant. He is the central character in the Hebrew Bible's Book of Joshua. According to the books Exodus, Numbers and Joshua, he became the leader of the Israelite tribes after the death of Moses; his name was Hoshe'a the son of Nun, of the tribe of Ephraim, but Moses called him Yehoshu'a (Joshua) (Numbers 13:16) the name by which he is commonly known; and he was born in Egypt prior to the Exodus, and was probably the same age as Caleb, with whom he is occasionally associated.

He was one of the twelve spies of Israel sent by Moses to explore the land of Canaan. (Numbers 13:1-16) After the death of Moses, he led the Israelite tribes in the conquest of Canaan, and allocated the land to the tribes. According to Biblical chronology, Joshua lived between 1500–1390 BCE, or sometime in the late Bronze Age. According to Joshua 24:29, Joshua died at the age of 110.

Joshua Lederberg ForMemRS (May 23, 1925 – February 2, 2008) was an American molecular biologist known for his work in microbial genetics, artificial intelligence, and the United States space program. He was just 33 years old when he won the 1958 Nobel Prize in Physiology or Medicine for discovering that bacteria can mate and exchange genes. He shared the prize with Edward L. Tatum and George Beadle who won for their work with genetics.

In addition to his contributions to biology, Lederberg did extensive research in artificial intelligence. This included work in the NASA experimental programs seeking life on Mars and the chemistry expert system Dendral.

Lederberg was born in Montclair, New Jersey, to a Jewish family, son of Esther Goldenbaum Schulman Lederberg and Rabbi Zvi Hirsch Lederberg, in 1925, and moved to Washington Heights, Manhattan as an infant. He had two younger brothers. Lederberg graduated from Stuyvesant High School in New York City at the age of 15 in 1941. After graduation, he was allowed lab space as part of the American Institute Science Laboratory, a forerunner of the Westinghouse Science Talent Search. He enrolled in Columbia University in 1941, majoring in zoology. Under the mentorship of Francis J. Ryan, he conducted biochemical and genetic studies on the bread mold Neurospora crassa. Intending to receive his MD and fulfill his military service obligations, Lederberg worked as a hospital corpsman during 1943 in the clinical pathology laboratory at St. Albans Naval Hospital, where he examined sailors' blood and stool samples for malaria. He went on to receive his undergraduate degree in 1944.

Paul Edward Farmer (born October 26, 1959) is an American anthropologist and physician. He is currently the Kolokotrones University Professor at Harvard University, formerly the Presley Professor of Medical Anthropology in the Department of Social Medicine at Harvard Medical School, an attending physician and Chief of the Division of Global Health Equity at Brigham and Women's Hospital in Boston, Massachusetts. In May 2009 he was named chairman of Harvard Medical School's Department of Global Health and Social Medicine, succeeding his longtime friend and collaborator Jim Kim. On Friday, December 17, 2010, Harvard University's President, Drew Gilpin Faust, and the President and Fellows of Harvard College, named him a Kolokotrones University Professor of Harvard University, the highest honor that the University can bestow on one of its faculty members.

He currently resides in Kigali, Rwanda. He is board certified in Internal Medicine and Infectious Disease. Farmer is one of the founders of Partners In Health (PIH), an international health and social justice organization. His work is the subject of Tracy Kidder's 2003 book Mountains Beyond Mountains: The Quest of Dr. Paul Farmer, A Man Who Would Cure the World. He is editor-in-chief of Health and Human Rights Journal. In May 2009, Farmer was named to head the U.S. Agency for International Development, but the nomination was withdrawn. In August 2009, Paul Farmer was named United Nations Deputy Special Envoy to Haiti to assist in improving the economic and social conditions of the Caribbean nation.